A woman in preterm labor at 30 weeks of gestation receives two 12 mg doses of betamethasone (Celestane) intramuscularly. The purpose of this pharmacologic treatment is to:
Reduce maternal and fetal tachycardia associated with terbutaline administration.
Suppress uterine contractions.
Stimulate fetal surfactant production.
Maintain adequate maternal respiratory effort and ventilation during magnesium sulfate therapy.
The Correct Answer is C
Betamethasone is a corticosteroid that enhances fetal lung maturity, which can help reduce the risk of respiratory distress syndrome and other complications in preterm infants. It does not reduce maternal and fetal tachycardia associated with terbutaline administration, suppress uterine contractions, or maintain maternal respiratory effort and ventilation during magnesium sulfate therapy.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Based on the provided information, the probable diagnosis for the spontaneous abortion in this woman would be a threatened abortion, since the cervix is closed and there is no evidence of expulsion of fetal or placental tissue. A threatened abortion is defined as vaginal bleeding occurring before the 20th week of gestation, with a closed cervical os, and no expulsion of fetal or placental tissue.
The other types of spontaneous abortion are defined as follows:
B. Inevitable abortion: vaginal bleeding and cramping with an open cervical os, with or without expulsion of fetal or placental tissue
C. Missed abortion: fetal demise without expulsion of fetal tissue, and may be associated with a closed cervical os and absence of uterine contractions
D. Incomplete abortion: partial expulsion of fetal or placental tissue, with or without vaginal bleeding, and may be associated with an open cervical os and uterine contractions
Correct Answer is B
Explanation
The readiness for induction of labor is assessed by determining the Bishop score. The Bishop score is a system used to evaluate the cervix for induction of labor readiness. It is based on the assessment of five factors: cervical dilation, cervical effacement, cervical consistency, cervical position, and fetal station. Each factor is scored on a scale of 0 to 3, with a maximum possible score of 15.
The higher the Bishop score, the more favorable the cervix is for induction of labor, and the higher the likelihood of a successful vaginal delivery. A Bishop score of 8 or higher is considered favorable for induction of labor. A low Bishop score may indicate that the cervix is not yet ripe and may need further cervical ripening before induction can be attempted.
The Apgar score is a test used to evaluate a newborn's physical condition at birth, based on five factors: appearance, pulse, grimace, activity, and respiration.
The biophysical profile is a prenatal ultrasound evaluation that assesses fetal well-being by evaluating fetal breathing, fetal movement, fetal tone, amniotic fluid volume, and fetal heart rate. Fetal position is an important consideration during labor, as it can impact the progression and outcome of labor, but it is not used to assess readiness for induction of labor.
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